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| author | Arvid Norlander <lkml@vorpal.se> | 2022-09-02 20:40:17 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-09-09 18:43:05 +0300 |
| commit | dd193dcdc9c02ee28ca0490d737d7a0636332569 (patch) | |
| tree | 3ea413c4d4f64388f561d91c5802ff9647a90116 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | db55fb8a06f241e168a4f275970f2701d52040c6 (diff) | |
| download | linux-dd193dcdc9c02ee28ca0490d737d7a0636332569.tar.xz | |
platform/x86: toshiba_acpi: Add fan RPM reading (internals)
This add the internal feature detection and reading function for fan RPM.
The approach is based on tracing ACPI calls using AMLI (a tracer/debugger
built into ACPI.sys) while using the Windows cooling self-test software.
The call used is {HCI_GET, 0x45, 0, 1, 0, 0} which returns:
{0x0, 0x45, fan_rpm, probably_max_rpm, 0x0, 0x0}
What is probably the max RPM is not currently used.
Signed-off-by: Arvid Norlander <lkml@vorpal.se>
Link: https://lore.kernel.org/r/20220902174018.1720029-2-lkml@vorpal.se
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions